Convert the given sentence into passive voice:
‘Please lend me a Grammar book for the day’.
a)Your Grammar book let be lent for a day.
b)You are requested to lend me your Grammar book for a day.
c)Let you lend your Grammar book to me.
d)For a day, your Grammar book be lend to me.

Hint: Focus on these points, while converting a sentence from active to passive voice:
1)The position of the subject and object is interchanged.
2)We only use the 3rd form or the past participle form of the verb.
Complete step-by-step answer:
 We know in the above-given sentence that ‘X’ is requesting ‘Y’ to lend his Grammar book for the day.
It is an imperative sentence as it expresses the request of ‘X’. Whenever we convert an imperative sentence into passive voice, we follow the following rules:
A)The form of the sentence’s changes into- Let + object + be + Past participle.
B)We can also use ‘you’ in cases, where we want to lay importance on the person being addressed.
Now in the given question: Please lend me a Grammar book for the day.
We know that ‘X’ is requesting ‘Y’. Hence, we will use the reporting verb ‘Requested’.
The correct answer is Option ‘b’- You are requested to lend me your Grammar book for a day.

Note: Whenever we begin a passive sentence with ‘you’, we need to assist it with a reporting verb.